CN109306105A - A kind of high polymer bio-based composite material and preparation method thereof - Google Patents
A kind of high polymer bio-based composite material and preparation method thereof Download PDFInfo
- Publication number
- CN109306105A CN109306105A CN201710620437.9A CN201710620437A CN109306105A CN 109306105 A CN109306105 A CN 109306105A CN 201710620437 A CN201710620437 A CN 201710620437A CN 109306105 A CN109306105 A CN 109306105A
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- China
- Prior art keywords
- composite material
- high polymer
- based composite
- polymer bio
- plant fiber
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
- C08L23/0815—Copolymers of ethene with aliphatic 1-olefins
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2206—Oxides; Hydroxides of metals of calcium, strontium or barium
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention discloses a kind of high polymer bio-based composite material, the component containing following parts by weight: plant fiber mixture 40~50, inorganic filler 20~35, linear low density polyethylene (LLDPE) 35~45, coupling agent 1~1.5, heat stabilizer 1~1.5, lubricant 1~1.5；Wherein, each component of the plant fiber and its account for total amount weight percent it is as follows: vegetation fiber 85~90%, calcium oxide 10~15%, oxalic acid 2~4%, dioctyl phthalate 2~4%, stearate 2~4%.High polymer bio-based composite material of the invention has good mechanical property, 20~30MPa of tensile strength, elongation at break 50%~65%.10~19MPa of bending strength, 10~15kJ/m2 of notch impact strength, and the service performance of material is good.
Description
Technical field
The present invention relates to a kind of high polymer bio-based composite material and preparation method thereof, specifically a kind of plant fiber
For the composite material that primary raw material is prepared, belong to technical field of polymer materials.
Background technique
Food packaging container with biology base environmental protection concept (including disposable and convenient lunch box, water on the market at present
Cup, cracker box and fresh food pallet etc.), in order to reach the performance requirement of various aspects, the overwhelming majority is moulded using starch base
Material adds what a large amount of PP were made into.The product one side cost that such technology is made is very high, and in addition PP content is too high, environmental protection
Concept is not prominent enough.One more thing is that most of food packaging container or pallet on the market, the result of evaporation residue
It is mostly exceeded, it may be harmful to the human body under being used for a long time.According to certain patent disclosure, have a kind of for cooking beverage or toothpaste bottle cap
Food grade plastic composition, also referred to as bio-based composite material, it is by 30~50% starch-based materials plus 50
~70% polypropylene is simply mixed or mixing granulation forms, and is then molded into bottle cap.Because any auxiliary agent is not added for the formula
(such as coupling agent, compatilizer) is directly blended with virgin pp, and compatibility is bad after being molded into product: i.e. starch and polypropylene
In conjunction with the problem of not close, phase interface is obviously layered, therefore it will appear obvious cracking phenomena under long-time use, in addition starch
The weatherability and frost resistance of this compounding substances of sill addition polymerization propylene itself are bad, in the case where temperature is used for a long time lower than -10 DEG C
Also it will appear brittle cracking phenomena.In summary, it is believed that be badly in need of developing at this stage a kind of for food packaging industry
New material can reduce cost and petrochemical industry plastics under the premise of meeting various processing and service performance requires
Dosage, to promote the value of environmental protection of product.
To solve the above-mentioned problems, the present invention provides a kind of new food grade materials, which is with mixed plant fiber
It for base-material, adds starch, inorganic filler etc. and is made, since PE ductility, low-temperature impact resistance and chemical corrosion resistance are prominent
Out, therefore the material can do very thin sheet material or thin wall product, and can almost make and contain any solid food and beverage
Container, can also can also be heated in micro-wave oven, price is cheaper with refrigerating.Most importantly the material is defended
Every testing result of raw index is all qualified, harmless.
Summary of the invention
High polymer bio-based composite material provided by the invention, the component containing following parts by weight:
40~50 parts of plant fiber mixture
20~35 parts of inorganic filler
35~45 parts of linear low density polyethylene (LLDPE)
1~1.5 part of coupling agent
1~1.5 part of heat stabilizer
1~1.5 part of lubricant
Wherein, each component of the plant fiber and its account for plant fiber weight percent it is as follows: vegetation fiber 85~90%,
Calcium oxide 10~15%, oxalic acid 2~4%, dioctyl phthalate 2~4%, stearate 2~4%
85~90% vegetation fiber is plant fibre such as one of straw, wheat stalk, milled powders of cornstalk or its any mixture
Main body base-material in dimension system.
Preferably, the inorganic filler is the mixture in talcum powder, silica flour or wollastonite in powder.
Preferably, the coupling agent is that one or more of Aluminate, titanate esters or aluminium titanium composite coupler are appointed
Meaning mixture.
Preferably, the lubricant is or mixtures thereof one of calcium stearate or zinc stearate.
Preferably, the brightening agent is titanium dioxide, lithopone or white master batch.
The present invention also provides the methods for preparing above-mentioned high polymer bio-based composite material, comprising the following steps:
(1) the pretreatment processing of material: plant fiber mixture is dried, and drying condition is 120-125 DEG C, and 1.5-2.5 is small
When；(2) claim 1 ingredient is pressed, raw material is pre-mixed, and mixing temperature is lower than 100 DEG C, and raw material is uniformly mixed as mixed processing
Material；(3) it is granulated: double-screw extruding pelletizing machine hopper is added in above-mentioned mixed processing material, twin-screw extrusion is entered by helical feed
Extruding pelletization is carried out in pelletizer, 180-100 DEG C of temperature, air-cooled pellet is tableware boiomacromolecule composite material.The present invention
With following the utility model has the advantages that
1, the present invention is that the composite material prepared by plant fiber and thermoplastic polymer has for white or white gray solid
Good mechanical property, 20~30MPa of tensile strength, elongation at break 50%~65%.10~19MPa of bending strength is lacked
Mouth 10~15kJ/m2 of impact strength, and service performance 16~23MPa of its good tensile strength of material, elongation at break
45%~75%.
The present invention is further explained in the light of specific embodiments, so that those skilled in the art can be more preferable
The understanding present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention.
Below in conjunction with example, the invention will be further described:
Embodiment 1:
1) preparation of plant fiber:
The each component weight proportion of plant fiber are as follows: 40 parts of plant fiber mixture, 20 parts of inorganic filler, the poly- second of linear, low density
45 parts of alkene, 1 part of coupling agent, 1 part of heat stabilizer, 1 part of lubricant；Wherein, each component of the plant fiber and its total amount is accounted for
Weight percent it is as follows: vegetation fiber 85%, calcium oxide 15%, oxalic acid 4%, dioctyl phthalate 2%, stearate
4%.
2) the pretreatment processing of material:
Plant fiber mixture is dried, and drying condition is 120-125 DEG C, 1.5-2.5 hours；(2) match by claim 1
Material, raw material are pre-mixed, and mixing temperature is lower than 100 DEG C, and raw material is uniformly mixed as mixed processing material；(3) it is granulated: will be above-mentioned mixed
It closes processing material and double-screw extruding pelletizing machine hopper is added, entered in double-screw extruding pelletizing machine squeeze out by helical feed and be made
Grain, 180-100 DEG C of temperature, air-cooled pellet is tableware boiomacromolecule composite material.
Claims (7)
1. a kind of high polymer bio-based composite material, which is characterized in that the component containing following parts by weight: plant fiber mixing
40~50 parts of object, 20~35 parts of inorganic filler, 35~45 parts of linear low density polyethylene (LLDPE), 1~1.5 part of coupling agent, heat stabilizer 1
~1.5 parts, 1~1.5 part of lubricant；Wherein, each component of the plant fiber and its account for total amount weight percent it is as follows:
Vegetation fiber 85~90%, calcium oxide 10~15%, oxalic acid 2~4%, dioctyl phthalate 2~4%, stearate 2~
4%.
2. high polymer bio-based composite material according to claim 1, which is characterized in that the inorganic filler is talcum
Mixture in powder, silica flour or wollastonite in powder.
3. high polymer bio-based composite material according to claim 1, which is characterized in that the coupling agent be Aluminate,
One or more of titanate esters or aluminium titanium composite coupler any mixture.
4. high polymer bio-based composite material according to claim 1, which is characterized in that the lubricant is calcium stearate
Or or mixtures thereof one of zinc stearate.
5. high polymer bio-based composite material according to claim 1, which is characterized in that the brightening agent be titanium dioxide,
Lithopone or white master batch.
6. the method for preparing any one of the Claims 1 to 5 high polymer bio-based composite material, which is characterized in that be specially
Following steps: (1) the pretreatment processing of material: plant fiber mixture is dried, and drying condition is 120-125 DEG C, 1.5-
2.5 hour；(2) claim 1 ingredient is pressed, raw material is pre-mixed, and mixing temperature is lower than 100 DEG C, and it is mixed that raw material, which is uniformly mixed,
Close processing material；(3) it is granulated: double-screw extruding pelletizing machine hopper is added in above-mentioned mixed processing material, double spiral shells are entered by helical feed
Extruding pelletization is carried out in bar extruding granulator, 180-100 DEG C of temperature, air-cooled pellet is tableware boiomacromolecule composite material.
7. the preparation method of high polymer bio-based composite material according to claim 1, which is characterized in that described using normal
Injection molding, molding and the fashion of extrusion of rule plastics carry out forming various daily necessities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710620437.9A CN109306105A (en) | 2017-07-26 | 2017-07-26 | A kind of high polymer bio-based composite material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710620437.9A CN109306105A (en) | 2017-07-26 | 2017-07-26 | A kind of high polymer bio-based composite material and preparation method thereof |
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| Publication Number | Publication Date |
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| CN109306105A true CN109306105A (en) | 2019-02-05 |
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| CN201710620437.9A Pending CN109306105A (en) | 2017-07-26 | 2017-07-26 | A kind of high polymer bio-based composite material and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115536953A (en) * | 2022-09-28 | 2022-12-30 | 施塔希(绍兴)新材料有限公司 | Biodegradable environment-friendly plastic master batch biodegradable packaging film |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102558615A (en) * | 2012-01-13 | 2012-07-11 | 武汉华丽环保科技有限公司 | High polymer bio-based composite material and preparation method thereof |
| CN102838816A (en) * | 2012-09-11 | 2012-12-26 | 桂林舒康建材有限公司 | New macromolecule fiber composite material |
| CN103554626A (en) * | 2013-11-06 | 2014-02-05 | 福建农林大学 | Micro-foaming polyethylene-matrix wood-plastic composite material and preparation method thereof |
| CN105713403A (en) * | 2014-12-02 | 2016-06-29 | 中国科学院宁波材料技术与工程研究所 | Wood-plastic composite and preparation method for special-shape molded member thereof |
-
2017
- 2017-07-26 CN CN201710620437.9A patent/CN109306105A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102558615A (en) * | 2012-01-13 | 2012-07-11 | 武汉华丽环保科技有限公司 | High polymer bio-based composite material and preparation method thereof |
| CN102838816A (en) * | 2012-09-11 | 2012-12-26 | 桂林舒康建材有限公司 | New macromolecule fiber composite material |
| CN103554626A (en) * | 2013-11-06 | 2014-02-05 | 福建农林大学 | Micro-foaming polyethylene-matrix wood-plastic composite material and preparation method thereof |
| CN105713403A (en) * | 2014-12-02 | 2016-06-29 | 中国科学院宁波材料技术与工程研究所 | Wood-plastic composite and preparation method for special-shape molded member thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115536953A (en) * | 2022-09-28 | 2022-12-30 | 施塔希(绍兴)新材料有限公司 | Biodegradable environment-friendly plastic master batch biodegradable packaging film |
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